I was disappointed that Isaac walked after Noirin was evicted, he was great for his very short time in there. Would've been very interesting if he'd stayed and possibly strengthened the Freddie/Marcus/Siavash group which it badly needed to stop the dominance of Lisa/Charlie/David/Rodrigo/Sophie group.
Still leaves a bad taste everytime I think about it because it was such a great series imo, but should've been even better.